A-3. Isolated Continuous Operating Power
-
Isolated continous operating power for the
AMPTEC 620LM Igniter Tester is derived via a
multiple levels of isolation electronics and circuits
for safety reasons (not D cell battery power). There
is a AC/DC Wall Adaptor with a special polarized
Molex connector that provides the first level of
isolated 24 VDC input (rear panel) into the meter.
This AC/DC Wall adapter accepts 115 VAC input
(60Hz) and provides basic wideband AC Noise
Isolation and a conditioned 24 VDC input for the
meter.
Inside the meter is DC/DC Isolation circuitry with 3
KV of isolation from the input DC voltage. This
internal circuitry provides a conditioned 6 VDC to
operate the meter’s measurement circuitry.
The isolated AC/DC Wall adapter is fitted with a
polarity keyed box type Molex connector plug #
436040-0200. This helps prevent the accidental use
of any non approved AC/DC Wall Adapter from
being plugged into the AMPTEC 620LM rear panel
power port (Molex 436040-0200 mate connector)
There is
NO
“
Power
” switch to operate the
620LM Igniter Tester. The meter is hardwired
to be “ON” whenever power is applied to the
safety meter’s mating Molex connector on the
rear panel.
A-4.
Setup and Use
The AMPTEC 620LM Igniter Tester may be
setup to operate within minute(s) of power "turn
on" (unless your in an extremely cold
temperature - allow more time for warm-up - 15
minutes).
The AMPTEC 620LM consumes little power
and generates virtually no heat. Consequently,
it may be used in any area where the
environment does not exceed the specifications
of Table B-2.
Avoid exposing the AMPTEC 620LM to
extremes of temperature which will affect
accuracy and stability of the product.
Fuse
(2 Amp-fast blo)
Molex connector plug # 436040-0200
